KR20030064546A - Method for recording a still picture on high density rewritable medium - Google Patents

Abstract

PURPOSE: A method for recording still pictures of a rewritable high density recording medium is provided to efficiently record and manage the still pictures having a recording format in a digital still camera together with video and audio data having a recording format in a digital video recorder at one rewritable high density recording medium. CONSTITUTION: A control unit groups a plurality of still pictures into one still picture group according to attributes of the still pictures to be recorded at a rewritable high density recording medium in accordance with a DCF(Design rule for Camera File system) directory and file structure in a digital still camera. The control unit additionally records and manages navigation information for controlling regeneration of the still pictures in a navigation information field in a digital video recorder.

Description

Method for recording a still picture on high density rewritable medium}

The present invention relates to a still image recording method of a rewritable high density recording medium for recording management on a rewritable high density recording medium by grouping a plurality of still pictures.

Recently, DVDs (DVDs), which are high-capacity, high-density optical discs capable of recording and storing high-definition video data or high-quality audio data for a long time, have been developed and widely distributed and commercially available. Such DVD-ROMs include DVD-ROMs for playback, A write once DVD-R and a rewritable DVD-RAM or DVD-RW (DVD-Rewritable), and a recording format for recording and storing movie data and audio data in the DVD-RAM or DVD-RW. The standardization work is in the completion stage.

In addition, as HD-TV broadcasting becomes full-fledged, a 23GB rewritable high-density recording medium, which is about five times the capacity of a DVD for recording and reproducing high-definition video signals such as HD-TV, and an application for applying the product Application Specification is under discussion for standardization among related companies.

In addition, a still image having a high quality still image, a digital audio data corresponding to the still image, for example, a still image having a recording format of JPEG or TIFF, PCM or u-Law PCM, and IMA-ADPCM A digital still camera (DSC) capable of recording and storing audio data having a recording format in a relatively large semiconductor memory such as a flash memory or the like is expected to be widely distributed and commercialized.

On the other hand, the still image and audio data recorded by the digital still camera (DSC) has a directory and file structure of the design rule for Camera File system (DCF) method, as is widely known, the DCF directory and In the file structure, as shown in FIG. 1, a top-level Digital Camera Image (DCIM) directory is provided under the root directory, and under the DCIM directory, a three-digit serial number that does not overlap each other, for example, You will have up to 900 directories with a total of eight digits of names combined with any one of 100 to 999 and a five digit character that can be arbitrarily specified by the user.

In addition, the directory having the name of the eight-digit name, for example, as shown in FIG. 1, has a four-digit character that can be arbitrarily designated by the user and a four-digit number that cannot be overlapped with each other in the '100ABCDE' directory. A plurality of files having a file name of a total of eight digits combined with a serial number can be recorded. The file includes a still image file (* .JPG) having a JPEG format and a recording format of a TIFF format. Still image files (* .TIF), and reduced image files (* .THM) with still images reduced to a certain size can be recorded, and also recorded by PCM method, u-Law PCM method, or IMA-ADPCM method. Wave audio files (* .WAV) or the like having a format may be recorded.

On the other hand, video and audio data recorded and stored by a general digital video recorder have a DVR directory and a file structure, as shown in FIG. 2. In the DVR directory and file structure, the topmost directory under the root directory is provided. Has a DVR directory, and under the DVR directory, a menu file (menu.tdat) and a mark file (mark.tdat) containing menu data and mark data are recorded, and the menu file and Index files (menu.tidx, mark.tidx) and the like for indicating the mark file can be recorded.

Also, under the DVR directory, PlayList files (* .rpls, * .vpls) containing title management information, a video play item (PlayItem-movie), and a still image play item (PlayItem-still) information. The recorded PLAYLIST directory, the CLIPINF directory containing clip information files (* .clpi) containing movie stream management and movie attribute information, and the actual movie. STREAM directories in which stream files (* .m2ts) are recorded may be recorded.

Meanwhile, a method for more efficiently recording and managing on a rewritable high-density recording medium by grouping a still image having a recording format in a digital still camera (DSC) and an audio or a reduced image related to the still image as described above. It is being discussed between these companies and there is no solution yet.

Accordingly, the present invention was created in view of the above situation, and a plurality of still images recorded on a rewritable high-density recording medium have the same single still image group (SPG: Still) according to the attributes of the still images. Picture Group) to record in a DCF directory and file structure in a digital still camera, or a similar directory and file structure, and to manage management information for controlling playback of the grouped still images in a digital video recorder. SUMMARY OF THE INVENTION An object of the present invention is to provide a still image recording method of a rewritable high-density recording medium which is additionally recorded and managed in an information field.

1 illustrates a DCF directory and file structure applied to a general digital still camera (DSC).

2 illustrates a DVR directory and file structure applied to a general digital video recorder.

3 illustrates a configuration of an optical disk apparatus to which a still image recording method of a rewritable high density recording medium according to the present invention is applied;

4 to 7 illustrate a still image recording process according to the first embodiment of the present invention and management information managed accordingly,

8 to 11 illustrate a still image recording process according to the second and third embodiments of the present invention and management information managed accordingly,

12 to 14 show a still image recording process according to the fourth embodiment of the present invention and management information managed accordingly,

15 to 18 show a still image recording process according to the fifth embodiment of the present invention and management information managed accordingly.

※ Explanation of code for main part of drawing

10, 11, 30, 31: switching unit 12: still image video encoder

13: Still picture audio encoder section 14: Video video encoder section

15: video audio encoder unit 16: mux (MUX)

17: format configuration unit 18: DVR encoder signal processing unit

19: control unit 32: still image video decoder

33: still picture audio decoder 34: motion picture video decoder

35: video audio decoder 36: De-MUX

37 Parser 38 DVR decoder signal processing unit

Still image recording method of a rewritable high-density recording medium according to the present invention for achieving the above object, according to the properties of the still image, a still image of a format compatible with the recording format in a digital still camera, Grouping into still image groups and recording on a rewritable high density recording medium; And additionally recording management information for controlling reproduction of the recorded still image in a management information field having a recording format in a digital video recorder.

Hereinafter, a preferred embodiment of a still image recording method of a rewritable high density recording medium according to the present invention will be described in detail with reference to the accompanying drawings.

First, an optical disk apparatus to which a still image recording method of a rewritable high density recording medium according to the present invention is applied, for example, a digital video recorder for recording and storing video and audio data and management information for playback control on a rewritable high density recording medium. 3, the first and second switching units 10 and 11, the still image video and audio encoders 12 and 13, the moving image and audio encoders 14 and 15, and MPEG 2 are shown in FIG. The MUX 16, the format configuring unit 17, the DVR encoder signal processing unit 18 and the control unit 19 may be configured, and the third and fourth switching units 30 and 31, the still image video and audio The decoders 32 and 33, the video and audio decoders 34 and 35, the MPEG 2 demux 36, the parser 37, and the DVR decoder signal processor 38 may be included. In the first and second switching units 10 and 11, video and audio input from outside Data is selectively outputted to the still image video and audio encoders 12 and 13 by switching control of the control unit 19, or selectively outputted to the moving image video and audio encoders 14 and 15.

On the other hand, in the still image video and audio encoders 12 and 13, the video and audio data selected and output through the first and second switching units 10 and 11 are the same as in a digital still camera DSC. , The still image having a recording format such as JPEG or TIFF, and audio data having a recording format such as PCM, u-Law PCM or IMA-ADPCM.

In addition, the video and audio encoders 14 and 15 store video and audio data selected and output through the first and second switching units 10 and 11, as in a general digital video recorder. Video data having a recording format of a video format, and audio data having a recording format of an AC-3 format, an MPEG 1 layer 2 format, or an LPCM format. The video and audio data encoded through the audio encoders 14 and 15 are muxed into an MPEG 2 stream and output to the format configuration unit 17.

In this case, the user may select a still image recording mode of a standard that is compatible with the format of the digital video recorder. In this case, the MPEG-2 image and the AC-3 and MPEG output from the video and audio encoders 14 and 15 may be selected. Audio data of the 1 Layer 2 or LPCM method is immediately outputted to the format configuration unit 17 in order to be recorded in a form suitable for a still image format without passing through the MPEG 2 mux 16.

On the other hand, in the format configuration unit 17, the still image video and audio data encoded by the still image video and audio encoders 12 and 13, or the video and audio encoders 14 and 15 are inputted. In this case, the still image video and audio data are configured in a recording format suitable for a rewritable high-density recording medium, additionally recording recording header information, and then output to the DVR encoder signal processor 18. The still image format configuration operation is performed. At this time, the format configuration unit 17 generates management information for controlling the reproduction of the still image, and outputs the management information to the controller 19.

On the other hand, when the moving picture video and audio data encoded by the moving picture and audio encoder 14 and 15 and the MPEG 2 stream muxed by the MPEG 2 mux 16 are inputted, the format configuration unit 17 ), The DVR video signal and audio data or the MPEG 2 stream are configured in a recording format suitable for a rewritable high density recording medium, and additionally recording recording header information is used to record the header information. It performs a series of video format configuration operation to output a video, and generates management information for controlling the playback of the video and audio data configured in the format, and outputs it to the control unit 19.

On the other hand, the DVR encoder signal processing unit 18 performs an error correction (ECC) operation and a recording signal processing operation for the still image or moving image video and audio data configured in the format to record and store on a rewritable high-density recording medium. In this case, the controller 19 controls the DVR encoder signal processor 18 to control the still image video data, the audio data or the reduced image thereof, according to a subject or property, and the like. ), And then to a DCF directory and file structure, or a similar directory and file structure, as described above with reference to FIG.

Then, management information for controlling playback of still images recorded and stored in the still image group as described above is recorded as a still image information file (* .stli) in the STILLINF directory newly defined in the present invention as shown in FIG. In addition, the relevant information is additionally recorded in the management information field of a general digital video recorder. Then, according to a user's request, operation of the DVR decoder signal processor 38 is controlled to stop recording and storing on the rewritable high density recording medium. A reproduction operation for reading out and reproducing the image is performed.

In addition, by using the still image management information read through the DVR decoder signal processor 38, the operation of the parser 37, etc. are controlled to perform a data reproduction control operation on the still image. A still image recording method of a rewritable high density recording medium will now be described in detail.

4 to 7 illustrate a still image recording process according to the first embodiment of the present invention and management information managed accordingly, wherein the controller 19 is recorded on a rewritable high density recording medium. As shown in Fig. 4, the still image and the audio or reduced image related to the still image are recorded in the same way as the DCF directory and file structure of the digital still camera (DSC). Still images having Attributes, audio and reduced images thereof, and the like are recorded using directory names and file names restricted in the DCF directory and file structure.

That is, a directory name having a total of 8 digits names in which a 3-digit serial number that does not overlap each other, any one of 100 to 999, and a 5-digit character that can be arbitrarily designated by a user, for example, '100FAMIL' At least one still image group SPG is recorded in the directory.

On the other hand, a still image file included in the directory, an audio file or a reduced image file related to the still image, and the like are four-digit characters that can be arbitrarily designated by a user, and a four-digit series that cannot be overlapped with each other. The file name is recorded as a total of eight digits combined with numbers.

For example, a still image file having a file name of 'MAMA0001.JPG' may be recorded in the '100FAMIL' directory, and a still image file having a file name of 'MAMA0002.JPG' and a 'MAMA0002.' A real-time recording audio file having a file name of WAV, and a dubbing audio file having a file name of 'MAMA0002.DUB' may be recorded in association. The 'MAMA0001.JPG' is a first DCF recording unit (DCF obj # 1). ), And also the 'MAMA0002.JPG', 'MAMA0002.WAV', and 'MAMA0002.DUB' files, that is, a plurality of files having the same file name and different extensions, may be recorded as one second DCF. It may be managed in units (DCF obj # 2).

In addition, the ID (SPG_ID) of the first still image group (SPG # 1) including a plurality of files using the same four-digit character ('MAMA') as described above, the four-digit character, Can be used as "MAMA." As described above, definition and attribute information on the still picture group (SPG) recorded in the DCF directory and the file structure are shown in FIG. * .stli) can be managed records.

On the other hand, in the still image information file (* .stli), the directory name (Directory name) where the still image group (SPG) is recorded, the still image group ID (SPG_ID), and the still image start image file number (or file name) ), A still image end image file number (or file name), and still image group attribute information may be recorded. For reference, the attribute information may be recorded as a play item (recorded in a playlist file in a digital video recorder). Can be recorded directly in PlayItem).

As shown in Fig. 6, the playlist general information PlayList_GI recorded in the playlist files (* .rpls, * .vpls) includes a playlist type (PlayList type) and the number of play items ( number of PlayItems, and Created Time information, and the like may be recorded. The PlayItems include a still image information file name, a STLI file name, a PlayItem type, and a target stop. The video group ID (target_SPG_ID), the start video number (or start file name) and the end video number (end file name) may be recorded.

In addition, as shown in FIG. 7, the still image information file (* .stli) includes general information about still image information (Stillinfo_GI) and a plurality of still image group information search pointers (SPGI_SRP # 1, # 2, # 3 ..), and the still image group information (SPGI # 1, # 2 ..) is recorded, the general information about the still image information, the type of still picture (type of still picture), Recording time information, number of SPGIs information, and the like may be recorded.

Meanwhile, in the still image group information SPGI indicated by the still image group search pointer SPGI_SRP, general information SPGI_GI and various attribute information about the still image group information may be recorded. For example, a picture attribute includes a still image coding scheme (JPEG, TIFF, MPEG ..), aspect ratio (Aspect Ratio 4: 3, 16: 9), and YCrCb sampling (4: 2: 2, 4). : 2: 0), resolution (1920X1080-HD-TV, 1280X960-SXGA, 1024X768-XGS ..) and the like can be recorded. In audio attribute (audio_attribute), audio coding method (PCM, IMA-ADPCM, AC) -3, MPEG-L2), sampling rates (8 kHz, 11.025 kHz, 48 kHz, 96 kHz, ...), audio number of channels, quantization information and the like can be recorded.

In addition, maker identification information (Maker_ID), a product model name, a recording source, and the like may be recorded in a maker attribute, and an original creation time (original_creation_time) information may be recorded in a time attribute. And the like can be recorded. In addition, information similar to the attribute information of the still image is recorded in the reduced image attribute, and information similar to the attribute information of the audio is recorded in the dubbed audio attribute information, and other attribute information (other attribute) The main attribute information defined in the DCF format or the EXIF format may be recorded.

Meanwhile, in the general information SPGI_GI of the still picture group information, a corresponding directory name corresponding to the still picture group. The still image group ID SPG_ID, the number of pictures, the start image number (or start file name) and the end image number (or end file name) may be recorded.

Accordingly, as illustrated in FIG. 5, the controller 19 may include a STLI file name of still image information corresponding to a play item PlayItem requested to be played among a plurality of play items included in a playlist. At least one still image group (SPG) associated with a still image group ID (SPG_ID) is searched and checked in the still image information file (* .stli), and a plurality of images recorded as a DCF directory and file structure in a DSC file system. Among still image groups SPG # 1 and SPG # 2 .., a still image corresponding to the start image number (or start file name) and end image number (or end file name), and the like are searched for an audio file and the like. Can be played back.

For reference, the attribute information for a still image having a recording format in a digital video recorder can be recorded in each still image and its associated audio file, respectively. specific application) reads and uses the recorded attribute information contained in the still image and its associated audio file, respectively. In an application (DVR-specfic application) employing a standard of a digital video recorder, the still image group information ( The attribute information recorded in the SPGI is read out and used.

8 to 10 show a still image recording process according to the second embodiment of the present invention and management information managed accordingly, wherein the controller 19 stops recording on a rewritable high density recording medium. As shown in Fig. 8, an image, audio or a reduced image related to the still image is recorded in a DCF directory and a file structure of a digital still camera (DSC). The still image and the associated audio or reduced image thereof are recorded and managed in the same manner as the DCF directory and the directory name restricted in the file structure, and each file name is recorded using an arbitrary file name while keeping the DCF rules.

That is, the directory name may use a directory name having a total of eight digits in which any one of three digit serial numbers, 100 to 999, which are not duplicated with each other, and a five digit character that can be arbitrarily designated by a user are combined. In this case, only one still image group (SPG) is recorded in the directory name, for example, the '100FAMIL' directory.

In addition, the still image group SPG includes a still image having the same property and an audio or reduced image related to the still image, and includes the still image file and an audio file or a reduced image file related to the still image. Etc. are recorded as a total of eight digit file names in which four digit characters that can be arbitrarily designated by the user and a four digit serial number that cannot be overlapped with each other are combined. Since the characters do not have to be the same, you choose an arbitrary file name.

For example, a still image file having a file name of 'MAMA0001.JPG' may be recorded in the '100FAMIL' directory, and a still image file having a file name of 'MAMA0002.JPG' and a 'MAMA0002.' A real time recording audio file having a file name of WAV, and a dubbed audio file having a file name of 'MAMA0002.DUB' may be recorded. The 'MAMA0001.JPG' is a first DCF recording unit (DCF obj # 1). The 'MAMA0002.JPG', 'MAMA0002.WAV' and 'MAMA0002.DUB's, that is, a plurality of related files having the same file name and different extensions, are stored in one second DCF recording unit. Can be managed separately (DCF obj # 2). In addition, a still image file using a file name having four different characters such as BABY0999.JPG may be included in the same still image group SPG.

The ID (SPG_ID) of the first still image group (SPG # 1) including the plurality of files recorded as described above may be assigned to the directory name '100FAMIL' or the last five characters of 'FAMIL'. Can be. The file name is arbitrarily selected as described above, and the still image and the files corresponding to the still image and the audio and the reduced image are divided into DCF recording units (DCF obj) using the same file name and different extensions. do.

On the other hand, definition and attribute information for the still image group SPG is stored in a still image information file (* .stli) among management information in the digital video recorder as shown in FIG. 9. In the still image information file, the remaining information except for the directory name described above with reference to FIG. 5, namely, a still image group ID, a still image start image file number (or a file name) may be recorded. ), A still image end image file number (or file name), and still image attribute information, and the like may be recorded. For reference, the attribute information may be additionally recorded directly in a play item (PlayItem) of a playlist.

As described above with reference to FIG. 6, the playlist general information PlayList_GI recorded in the playlist files * .rpls and * .vpls includes playlist type information and the number of play items. (number of PlayItems) and information about a created time (Created Time), etc. are recorded. The PlayItems include a still image file name, a STLI file name, a PlayItem type, and a target still image group. The ID (target_SPG_ID), and the start video number (or start file name) and the end video number (end file name) may be recorded.

On the other hand, the still image information file (* .stli), as shown in Figure 10, the general information (Stillinfo_GI) of still image information, and a plurality of still image group information search pointer (SPGI_SRP # 1, # 2, # 3) ..), and the still image group information (SPGI # 1, # 2 ..) is recorded, the general information of the still image information, the type of still picture (type of still picture) and the recording time ( recording time) information and SPGI number information may be recorded.

Meanwhile, various kinds of attribute information such as general information (SPGI_GI), image attribute (picture_attribute), etc. of still image group information may be recorded in the still image group information (SPGI) linked and instructed by the still image group search pointer. As described above, the image attribute includes a still image coding scheme (JPEG, TIFF, MPEG ..), aspect ratio, YCrCb sampling (4: 2: 2, 4: 2: 0), resolution (1920X1080-). HD-TV, 1280X960-SXGA, 1024X768-XGS ..), etc. can be recorded. In audio attribute (audio_attribute), audio coding method (PCM, IMA-ADPCM, AC-3, MPEG1-L2), sampling rate (8 kHz, 11.025 kHz, 48 kHz, 96 kHz, ...), audio number of channels, quantization information, and the like can be recorded.

The maker attribute may include identification information of the producer, a product model name, a recording source, and the like, and an original creation time may be included in the time attribute. Information and the like, and attribute information similar to that of the still image is recorded in the reduced image attribute, and attribute information almost similar to the audio attribute information is recorded in the dubbing audio attribute information. In other attribute information, main information defined in the DCF format or the EXIF format may be included and recorded.

Meanwhile, the general information of the still image group information includes a still image group ID (SPG_ID), a number of pictures, a start image number (or a start file name) and an end image number except a directory name. (Or the end file name) and the like can be recorded.

Accordingly, in the controller 19, as described above with reference to FIG. 9, among the plurality of play items included in the playlist, the STLI file name and the still image information of the still image information corresponding to the play item requested to be reproduced. Among still image groups recorded in the DCF directory and file structure in the DSC file system by checking and checking the still image group (SPG) associated with the image group ID (SPG_ID) from the still image information file (* .stli), The still image corresponding to the start image number (or start file name) and end image number (or end file name), and the like can be searched for and reproduced.

On the other hand, as a third embodiment according to the present invention, as shown in Figure 11, while maintaining the DCF directory and file structure of the directory under the DCIM directory, there is a separate sub-directory (Sub-Directory), For example, one still image group (SPG) is correspondingly recorded in a subdirectory name that can be arbitrarily designated and used by the user, and a still image file having a file name that can be arbitrarily designated and used by the user, and the still image. Audio or a reduced image file related to the above may be recorded using the same file name and different extensions as described above.

The ID (SGP_ID) of the still image group recorded as described above may be designated and used by the subdirectory name. In this case, the management information described above with reference to FIG. 10, that is, the directory name (directory name) By using the still picture information general information SPGI_GI, in which the information on the picture is not additionally recorded, the data searching and reproducing operation for the still picture may be performed.

12 to 14 show a still image recording process according to a fourth embodiment of the present invention and management information managed accordingly, wherein the controller 19 stops recording on a rewritable high density recording medium. The image and audio or reduced image related to the still image are recorded in the DCF directory and file structure of the digital still camera (DSC), wherein the still image having the same attribute and the audio associated therewith are recorded. Alternatively, the recorded image is recorded and managed using a directory name restricted in the DCF directory and file structure, and the file name can be arbitrarily designated and used by the user while complying with the DCF rules.

On the other hand, a still image having the same property and an audio or a reduced image related to the still image are recorded and managed in one DCF recording unit (DCF obj) using the same file name and different extensions. In the '100FAMIL' directory, a still image file having a file name of 'MAMA0001.JPG' arbitrarily designated by the user may be recorded, and a still image file having a file name of 'MAMA0002.JPG' and a 'MAMA0002 associated with it. A real time recording audio file having a file name of .WAV ', a dubbing audio file having a file name of' MAMA0002.DUB ', and the like can be recorded.

The 'MAMA0001.JPG' may be classified and managed as a first DCF recording unit (DCF obj # 1), and the 'MAMA0002.JPG', 'MAMA0002.WAV' and 'MAMA0002.DUB' files, namely, A plurality of related files having the same file name and different extensions may be managed by one second DCF recording unit (DCF obj # 2). Also, regardless of the file names, 'SIST0004.JPG' and 'SIST0004. Files recorded in DUB 'may be recorded and managed in a fourth DCF recording unit (DCF obj # 3).

In addition, the ID SPG_ID of the first still image group SPG # 1 including the plurality of files that can be arbitrarily designated and used by the user as described above is a serial number, for example, irrespective of the directory name or file names. For example, the four-digit serial number '0001' may be assigned. In this case, the list of file names (FNL: File Name List # 0001, # 0002, ...) may be assigned to each still image group ( The file name lists FNL can be recorded and managed as character indication information (CPI: Character Point Information) in the management information in the digital video recorder.

On the other hand, as the file name list FNL, a still image file name, a still image file number, or the like may be used, and an audio file name associated with the still image may be additionally used. As described above, definition and attribute information on the still image group (SPG) recorded in the DCF directory and the file structure as described above are stopped among management information in the digital video recorder. The image information files (* .stli) may be recorded and managed. The still image group may include a file name list (FNL) information associated with the still image group and various attribute information.

The play item (PlayItem) recorded in the playlist file (* .rpls, * .vpls) includes a still image information file name (STLI file name), a still image group ID (SPG_ID), and a play item start image. The file number (or file name) and the information about the play item end image file number (or file name) are recorded and included in association with the still image information file.

Further, as shown in FIG. 14, the still image information file (* .stli) includes general information (Stillinfo_GI) of still image information and a plurality of still image group information search pointers (SPGI_SRP # 1, # 2, #). 3 ..), and still image group information (SPGI # 1, # 2 ..) is recorded, and the general information of the still image information, the type of still picture (type of still picture) and the recording time (recording time) information and SPGI number information may be recorded.

Meanwhile, in the still image group information SPGI associated with the still image group search pointer, general information SPGI_GI and a plurality of attributes of the still image group information may be recorded. General information of group information includes a directory name. The still image group ID (SPG_ID) and the number of pictures are recorded including the start image number (or start file name) and the end image number (or end file name). The list FNL is additionally recorded for inclusion.

Accordingly, the controller 19 may include a STLI file name, a still image group ID (SPG_ID) of still image information corresponding to a play item PlayItem requested to be played, among a plurality of play items included in a playlist, And stop the attribute information and the file name list FNL corresponding to at least one or more still image groups SPGs associated with the play item start image file number (or file name) and play item end image file number (or file name). Search and check from the image information file (* .stli), search for still images corresponding to the file name list, audio files, and the like among the still image groups recorded in the DCF directory and file structure in the DSC file system. You can play.

15 to 18 show a still image recording process according to a fifth embodiment of the present invention and management information managed accordingly, wherein the controller 19 stops recording on a rewritable high density recording medium. The image and audio or reduced image related to the still image are recorded in the DCF directory and file structure of the digital still camera (DSC), wherein the still image having the same attribute and the audio associated therewith are recorded. Alternatively, the reduced image or the like is recorded and managed using a directory name restricted in the DCF directory and the file structure, and the file names contained in the directory can be arbitrarily selected by the user while complying with the DCF rules.

On the other hand, a still image having the same property and an audio or a reduced image related to the still image are recorded and managed in one DCF recording unit (DCF obj) using the same file name and different extension. In the '100FAMIL' directory, a still image file having a file name of 'MAMA0001.JPG' can be recorded, and also a still image file having a file name of 'MAMA0002.JPG' and a file name of 'MAMA0002.WAV' associated with it. Real-time recorded audio file, and a dubbed audio file having a file name of 'MAMA0002.DUB' and the like can be designated and recorded by user selection.

The 'MAMA0001.JPG' may be classified and managed as a first DCF recording unit (DCF obj # 1), and the 'MAMA0002.JPG', 'MAMA0002.WAV' and 'MAMA0002.DUB' files, namely, A plurality of related files having the same file name and different extensions may be managed by one second DCF recording unit (DCF obj # 2), and may also be classified as' SIT0004.JPG 'and' SIST0004. DUB 'may be recorded and managed in the fourth DCF recording unit (DCF obj # 3).

In addition, the ID (SPG_ID) of the first still image group (SPG # 1) including a plurality of files that can be arbitrarily designated and used by the user as described above is a serial number, for example, irrespective of the directory name and file names. For example, a 4-digit serial number '0001' may be allocated. In this case, a still picture entry map (SE_map) for the still image files may be assigned to each still image group (SPG # 1, # 2). And ...), and the still image entry map SE_map includes a plurality of still image entry information for accessing each still image and its associated files.

Meanwhile, the still image entry information may include a still picture recording size, an audio file name, an audio playback time, and the like. Recording information of a reduced image such as a recording size (Thumb_Size) of the reduced image may be included in the still image entry information. In this case, the still image can be searched and reproduced without using a separate file system. As shown in FIG. 16, the still image group in the still image information file (* .stli) among management information in the digital video recorder is shown. The attribute information for and a still image entry map may be included.

The play items recorded in the playlist files (* .rpls, * .vpls) include a still image information file name (STLI file name), a still image group ID (SPG_ID), and a play item start image file number ( Or a file name) and information about a play item end image file number (or file name), recorded and associated with the still image information file. The still image information file (* .stli) is shown in FIG. Similarly, general information (Stillinfo_GI) of still image information, a plurality of still image group information search pointers (SPGI_SRP # 1, # 2, # 3 ..), and still image group information (SPGI # 1, # 2 ..) The recording information may include the type of still picture, the recording time information, and the number of SPGI information.

Meanwhile, in the still image group information SPGI associated with the still image group search pointer, general information SPGI_GI of a still image group information, a plurality of attributes, and the like may be recorded. In the general information of the image group information, the still image group ID (SPG_ID) and the number of pictures are recorded, including a directory name. While the start video number (or start file name) and end video number (or end file name) and the like are excluded, the still picture entry map SE_map is additionally recorded.

In this case, as shown in FIG. 18, a start picture address and a picture size information are recorded in a still picture entry SE_Entry recorded in the still picture entry map. with a still image entry of (type 1). A second type (type 2) still picture which further includes the start picture address, a picture size, a related audio file name (audio_1_file_name ..) and audio reproduction time information (audio_1_PB_time). An entry, and a third type (type 3) still image entry in which an audio recording size is recorded instead of the audio file name may be recorded.

Accordingly, the controller 19 may be configured to include at least a file name of the still image information corresponding to the play item requested to be played among the plurality of play items included in the playlist and a still image group ID SPG_ID. Among still image groups recorded as DCF directories and file structures in a DSC file system without using a separate file system, by using a still image entry map (SE_map) corresponding to one or more still image groups (SPGs), The still image corresponding to the still image entry and the audio file associated with the still image can be searched and reproduced.

For reference, the still image recording method according to the present invention may be implemented by an optical disc apparatus composed of other constituent means other than the optical disc apparatus configured as described above with reference to FIG.

As mentioned above, preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art can improve and change various other embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. , Replacement or addition would be possible.

According to the present invention, a still image recording method of a rewritable high density recording medium according to the present invention comprises a plurality of still images recorded on a rewritable high density recording medium according to an attribute of the still image, and the same still image group. Group by (Still Picture Group) to record the DCF directory and file structure in the digital still camera (DSC), or a similar directory and file structure, and digitally store management information for controlling playback of the grouped still image. By additionally recording and managing in the Navigation Information field in the video recorder, the still picture having the recording format of the digital still camera (DSC), together with the video and audio data having the recording format in the digital video recorder, etc. Efficient record management on a single rewritable high density recording medium It is a very useful invention.

Claims (38)

A step (1) of recording still images of a format compatible with the recording format of the digital still camera into a still image group by grouping the still images into one still image group according to the attributes of the still images; And And recording the management information for reproducing and controlling the recorded still image in a management information field having a recording format in a digital video recorder. . The method of claim 1, In the first step, the still image group (SPG) is recorded using a directory name and a file name restricted in the DCF directory and file structure of the digital still camera. . The method of claim 2, And the file names included in the same single still image group comprise the same four-digit letter and a different four-digit serial number. The method of claim 2, The first step is a still image recording method of a rewritable high density recording medium, characterized in that to record at least one group of still images in the one directory. The method of claim 2, In the step 1, at least one or more of the still image and its associated audio or reduced image are classified and recorded in one DCF recording unit (DCF obj) using the same file name and different extensions. A still image recording method of a rewritable high density recording medium. The method of claim 2, In step 1, an ID (SPG_ID) of the still image group is assigned to some characters commonly used for a plurality of file names included in the still image group. How to record. The method of claim 1, In step 2, the access information and the attribute information of the recorded still image group SPG are generated and recorded as a still image information (* .stli) file, and management information associated with the search information. Recording the recording information in the PlayItem field of the Playlist which is management information in the digital video recorder. The method of claim 7, wherein The still image is a still image recording method of a rewritable high-density recording medium, characterized in that it is managed by individual play image units by a play item or collectively by a plurality of still image units. The method of claim 7, wherein The play item of the playlist includes a part of the still image information file name (STLI file name), ID (SPG_ID) information of the corresponding still image group, and a start picture number or a start file name. Or all-inclusive recording of a rewritable high density recording medium. The method of claim 7, wherein The still image information (* .stli) file includes a part or all of the general information (Stillinfo_GI), the still image group information search pointer (SPGI_SRP), and the still image group information (SPGI) of the still image information. A still image recording method of a rewritable high density recording medium. The method of claim 10, In the general information (Stillinfo_GI) of the still image information, the still image recording of the rewritable high density recording medium, which includes some or all of the information on the type of the still image, the recording time, and the number of still image groups. Way. The method of claim 10, The still image group information SPGI includes a directory name in which a still image group is recorded, a still image group ID SPGI_ID, and a part of a start picture number or a file name. Or the general information (SPGI_GI) of the still image group information, which is recorded in its entirety, and various attribute information about the still image and its related data. Way. The method of claim 1, In the first step, the still image group (SPG) is recorded using a directory name restricted in the DCF directory and file structure of the digital still camera, and each still image file and associated data files are randomly selected by a user. A still image recording method for rewritable high density recording media, characterized by recording using a specified file name. The method of claim 13, The first step is a still image recording method for a rewritable high density recording medium, characterized in that only one still image group is recorded in the one directory. The method of claim 13, In the step 1, at least one or more of the still image and the associated audio or reduced image are recorded and managed in one DCF recording unit (DCF obj) using the same file name and different extensions. A still image recording method of a rewritable high density recording medium. The method of claim 13, In step 1, a rewritable high-density recording, characterized in that the ID (SPG_ID) for the still image group is assigned to the same character and number as the directory name or that only the directory name is assigned and used. Still image recording method of media. The method of claim 10, In the still image group information SPGI, the general information of the still image group information in which some or all of a still image group ID SPGI_ID and a start picture number or a start file name are recorded is recorded. SPGI_GI), and various attribute information about still images and their related data are recorded, and in the general information of the still image group information, a directory name in which the still image group is recorded is excluded. And a still image recording method of a rewritable high density recording medium. The method of claim 1, In the first step, a separate sub-directory is additionally recorded in the DCF directory and file structure of the digital still camera, and only one still image group (SPG) is recorded in the subdirectory. A still image recording method of a rewritable high density recording medium. The method of claim 18, The subdirectory name may be a subdirectory name irrespective of the DCF directory of the digital still camera and the directory name restricted in the file structure, and the at least one of the still image and the associated audio or reduced image may be selected. A still image recording method of a rewritable high density recording medium, characterized by recording management by one DCF recording unit (DCF obj) using the same file name and different extensions. The method of claim 18, In the step 1, the ID (SPG_ID) for the still image group is assigned to the same letter and number as the subdirectory name. The method of claim 13, And a file name list is additionally recorded as still picture search information in said still picture group information (SPGI). The method of claim 21, And recording the attributes of each still image or data related to the still image in the file name list. The method of claim 13, In step 1, an ID (SPG_ID) of the still image group is assigned to only a part of numbers that are commonly used for a plurality of file names included in the still image group. How to record. The method of claim 17, The first step is a still image recording method of a rewritable high density recording medium, characterized in that to record at least one group of still images in the one directory. The method of claim 21, In the step 1, at least one or more of the still image and the associated audio or reduced image are recorded and managed in one DCF recording unit (DCF obj) using the same file name and different extensions. A still image recording method of a rewritable high density recording medium. The method of claim 7, wherein The play item of the playlist may include the still image information file name (STLI file name), ID (SPG_ID) information of the still image group, a start picture file number or a start file name, And a part or all of an end picture number or an end file name is recorded. The method of claim 26, The still image information (* .stli) file includes some or all of the still image general information (Stillfo_GI), the still image group information search pointer (SPGI_SRP), and the still image group information (SPGI). A still image recording method of a rewritable high density recording medium. The method of claim 21, In the general information of the still image group information, some or all of a directory name, a still image group ID (SPGI_ID), and a number of pictures information recorded with the still image group are recorded. A still picture recording method of a rewritable high density recording medium, wherein a start picture number or an end picture number of a picture group is excluded from recording. The method of claim 21, And a file name or a file number of the still image and its associated data files are recorded in the file name list. The method of claim 29, And a file name and a file number of the still image and its associated data files are recorded with flag information indicating at least one of an image, an audio, and a reduced image. The method of claim 27, And a still image entry map (SE_map) is additionally recorded as the still image search information in the still image group information (SPGI). The method of claim 31, wherein And the still picture group ID (SPGI_ID) and information on the number of pictures in the general information of the still picture group information. The method of claim 32, And the entry information (SE_entry) for searching the still image and its associated data files is recorded in the still image entry map. The method of claim 33, And the entry information includes a start picture address where a still image is recorded and information on an image recording size. The still image recording method of a rewritable high density recording medium according to claim 1, wherein the entry information is recorded. The method of claim 33, The entry information may include information about a start image address where a still image is recorded, and information about a recording size (audio_size) and a reproduction time (audio_PB_time) in at least one audio file associated with the still image. A still image recording method of a rewritable high density recording medium. The method of claim 33, And the entry information includes still image recording information and at least one audio file name (audio_file_name) and reproduction time (audio_PB_time) information associated with the still image. The method of claim 33, And the record information of the reduced image is further included and recorded in the entry information. The method of claim 33, And the entry information for audio is further defined and used in the entry information.